Silicon carbide thermocouple protective sleeve

Abstract

When a thermocouple for aluminum-titanium-boron production needs to be protected, a protection sleeve body is manufactured and sintered through silicon carbide, so that the thermocouple protection sleeve can resist the corrosion of potassium fluoroaluminate by utilizing the characteristics of the material, thereby protecting the thermocouple from being corroded by the potassium fluoroaluminate. When the thermocouple protective sleeve needs to be replaced, the first sleeve body, the second sleeve body or the third sleeve body can be detached and replaced according to the corrosion conditions of the first sleeve body, the second sleeve body and the third sleeve body, so that the service life of the protective sleeve can be prolonged, the thermocouple does not need to be replaced every day, and the thermocouple is better protected; and parts on the protective sleeve can be replaced according to the corrosion condition, so that the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of thermocouple protection sleeve technology, and in particular to a silicon carbide thermocouple protection sleeve. Background Technology

[0002] Potassium fluoroaluminate, a byproduct of aluminum-titanium-boron production, is highly corrosive.

[0003] In conventional aluminum alloy production, the thermocouple housings used are made of 316L stainless steel. They are usually corroded and damaged after just one furnace cycle, requiring frequent replacement of the housings. Furthermore, the thermocouples inside the protective sleeve are easily damaged. The closer the protective sleeve is to the furnace, the greater the degree of corrosion. Since traditional thermocouple protective sleeves are usually molded as a single piece, the entire protective sleeve must be replaced, which greatly increases production costs. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the aforementioned problems in the prior art, this utility model provides a silicon carbide thermocouple protective sleeve, which can increase the service life of the protective sleeve, eliminate the need for daily thermocouple replacement, thus better protecting the thermocouple. Furthermore, components on the protective sleeve can be replaced according to the corrosion condition, reducing production costs.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0008] A silicon carbide thermocouple protective sleeve includes a protective sleeve body, the protective sleeve body including a first sleeve body, a second sleeve body and a third sleeve body, the upper part of the second sleeve body is detachably connected to the lower part of the first sleeve body, and the lower part of the second sleeve body is detachably connected to the upper part of the third sleeve body.

[0009] The protective case body is made of silicon carbide.

[0010] Furthermore, the first sleeve includes a first sleeve, a mounting base, and a disassembly plate. The disassembly plate is provided on the outer surface of the upper part of the first sleeve, and the disassembly plate is detachably connected to the mounting base. A first external threaded post is provided at the lower part of the first sleeve, and the first external threaded post is detachably connected to the second sleeve.

[0011] Furthermore, the second sleeve includes a second tube, both ends of which are provided with internal thread grooves. The internal thread groove at the upper part of the second tube is detachably connected to the first external thread post, and the internal thread groove at the lower part of the second tube is detachably connected to the third sleeve.

[0012] Furthermore, the third sleeve includes a third sleeve and a second external threaded post. The upper part of the third sleeve is provided with the second external threaded post, and the second external threaded post is detachably connected to the internal threaded groove at the lower part of the second sleeve. The lower part of the third sleeve is in a closed state.

[0013] (III) Beneficial Effects

[0014] The beneficial effects of this utility model are as follows: When it is necessary to protect the thermocouples used in the production of aluminum-titanium-boron thermocouples, the protective sleeve body is manufactured and sintered using silicon carbide. This allows the thermocouple protective sleeve to utilize the properties of the material, making it resistant to potassium fluoroaluminate corrosion, thereby protecting the thermocouple from potassium fluoroaluminate corrosion. When it is necessary to replace the thermocouple protective sleeve, the first, second, or third sleeve body can be disassembled and replaced according to the corrosion condition of the first, second, and third sleeve bodies. This increases the service life of the protective sleeve, eliminating the need to replace the thermocouples every day, thus providing better protection for the thermocouples. Furthermore, the components on the protective sleeve can be replaced according to the corrosion condition, reducing production costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the silicon carbide thermocouple protective sleeve according to an embodiment of the present invention.

[0016] Figure 2 An exploded view of the overall structure of the silicon carbide thermocouple protective sleeve according to an embodiment of this utility model;

[0017] Figure 3 This is a cross-sectional view of the overall structure of the silicon carbide thermocouple protective sleeve according to an embodiment of the present invention.

[0018] [Explanation of Labels in the Attached Image]

[0019] First sleeve 1, second sleeve 2, third sleeve 3, mounting base 11, disassembly plate 12, first sleeve 13, first external threaded post 14, internal threaded groove 21, second sleeve 22, second external threaded post 31, third sleeve 32. Detailed Implementation

[0020] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Please refer to Figures 1 to 3 As shown, the present invention provides a silicon carbide thermocouple protective sleeve, which includes a protective sleeve body. The protective sleeve body includes a first sleeve body 1, a second sleeve body 2, and a third sleeve body 3. The upper part of the second sleeve body 2 is detachably connected to the lower part of the first sleeve body 1, and the lower part of the second sleeve body 2 is detachably connected to the upper part of the third sleeve body 3.

[0022] The protective case body is made of silicon carbide.

[0023] The working principle of this utility model is as follows: When it is necessary to protect the thermocouple used in the production of aluminum-titanium-boron thermocouples, the protective sleeve body is made and sintered by silicon carbide. The protective sleeve utilizes the properties of this material to make it resistant to potassium fluoroaluminate corrosion, thereby protecting the thermocouple from potassium fluoroaluminate corrosion. When it is necessary to replace the thermocouple protective sleeve, the first sleeve 1, the second sleeve 2, or the third sleeve 3 can be disassembled and replaced according to the corrosion condition of the first sleeve 1, the second sleeve 2, and the third sleeve 3.

[0024] Furthermore, the first sleeve 1 includes a first sleeve 13, a mounting base 11, and a disassembly plate 12. The disassembly plate 12 is provided on the outer surface of the upper part of the first sleeve 13. The disassembly plate 12 is detachably connected to the mounting base 11. A first external thread post 14 is provided at the lower part of the first sleeve 13. The first external thread post 14 is detachably connected to the second sleeve 2.

[0025] As can be seen from the above description, when it is necessary to install the protective sleeve on the furnace body, the mounting base 11 can be welded to the furnace body first, and then the connected first sleeve 1, second sleeve 2 and third sleeve 3 can be fixed to the mounting base 11 through the disassembly plate 12, so that the thermocouple can be better installed in the furnace.

[0026] Furthermore, the second sleeve 2 includes a second sleeve 22, both ends of which are provided with internal thread grooves 21. The internal thread grooves 21 at the upper part of the second sleeve 22 are detachably connected to the first external thread post 14, and the internal thread grooves 21 at the lower part of the second sleeve 22 are detachably connected to the third sleeve 3.

[0027] As can be seen from the above description, when it is necessary to assemble the protective sleeve body, the second sleeve 22 can be spliced ​​with the first external thread post 14 and the second external thread post 31.

[0028] Furthermore, the third sleeve 3 includes a third sleeve 32 and a second external threaded post 31. The upper part of the third sleeve 32 is provided with the second external threaded post 31. The second external threaded post 31 is detachably connected to the internal threaded groove 21 at the lower part of the second sleeve 22. The lower part of the third sleeve 32 is in a closed state.

[0029] As can be seen from the above description, when it is necessary to replace the severely corroded third sleeve 32, the third sleeve 32 can be separated from the internal thread at the lower part of the second sleeve 22 through the third external thread post, and then the new third sleeve 3 can be installed at the lower part of the second sleeve 22. Example 1

[0030] Please refer to Figures 1 to 3 A silicon carbide thermocouple protective sleeve includes a protective sleeve body, the protective sleeve body including a first sleeve body 1, a second sleeve body 2 and a third sleeve body 3, the upper part of the second sleeve body 2 is detachably connected to the lower part of the first sleeve body 1, and the lower part of the second sleeve body 2 is detachably connected to the upper part of the third sleeve body 3.

[0031] The protective case body is made of silicon carbide material;

[0032] The first sleeve 1 includes a first sleeve 13, a mounting base 11 and a disassembly plate 12. The disassembly plate 12 is provided on the outer surface of the upper part of the first sleeve 13. The disassembly plate 12 is detachably connected to the mounting base 11 by bolts. A first external thread post 14 is provided at the lower part of the first sleeve 13. The first external thread post 14 is detachably connected to the second sleeve 2.

[0033] The second sleeve 2 includes a second sleeve 22, both ends of which are provided with internal thread grooves 21. The internal thread grooves 21 at the upper part of the second sleeve 22 are detachably connected to the first external thread post 14, and the internal thread grooves 21 at the lower part of the second sleeve 22 are detachably connected to the third sleeve 3.

[0034] The third sleeve 3 includes a third sleeve 32 and a second external threaded post 31. The upper part of the third sleeve 32 is provided with the second external threaded post 31. The second external threaded post 31 is detachably connected to the internal threaded groove 21 at the lower part of the second sleeve 22. The lower part of the third sleeve 32 is in a closed state.

[0035] The above describes the basic principles, main features, and advantages of this utility model. All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be detailed here.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A protective sheath for a silicon carbide thermocouple, characterized by: The protective sleeve body comprises a first sleeve body, a second sleeve body and a third sleeve body, the upper part of the second sleeve body is detachably connected with the lower part of the first sleeve body, and the lower part of the second sleeve body is detachably connected with the upper part of the third sleeve body. The protective sleeve body is made of silicon carbide.

2. The silicon carbide thermocouple protective sheath as defined in claim 1, wherein: The first sleeve body comprises a first sleeve, a mounting seat and a dismounting plate, the outer surface of the upper part of the first sleeve is provided with the dismounting plate, the dismounting plate is detachably connected with the mounting seat, the lower part of the first sleeve is provided with a first external thread column, and the first external thread column is detachably connected with the second sleeve body.

3. The silicon carbide thermocouple protective sheath as defined in claim 2, wherein: The second sleeve body comprises a second sleeve, and the two ends of the second sleeve are provided with internal thread grooves, the internal thread grooves of the upper part of the second sleeve are detachably connected with the first external thread column, and the internal thread grooves of the lower part of the second sleeve are detachably connected with the third sleeve body.

4. The silicon carbide thermocouple protective sheath of claim 3, wherein: The third sleeve body comprises a third sleeve and a second external thread column, the upper part of the third sleeve is provided with the second external thread column, the second external thread column is detachably connected with the internal thread grooves of the lower part of the second sleeve, and the lower part of the third sleeve is in a closed state.

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